Question

HBr ---- h2 -------H2S ---------SO2

Answer 1

1) 2HBr + Zn -> H2 + ZnBr2
2) H2 + S -> H2S
3) 2H2S + 3O2 -> 2SO2 + 2H2O

Answer 2

The chemical equation you provided appears to be a reaction pathway involving the conversion of hydrogen bromide (HBr) to sulfur dioxide (SO2) via intermediate reactions with hydrogen gas (H2) and hydrogen sulfide (H2S). Let's break down each step of the pathway:

1. HBr → H2: In this step, hydrogen bromide (HBr) is converted to hydrogen gas (H2). This could occur through a variety of processes, such as the reaction of HBr with a reducing agent or through a redox reaction.

2. H2 → H2S: Here, hydrogen gas (H2) is further reacted to produce hydrogen sulfide (H2S). This reaction typically involves the reaction of hydrogen with sulfur or a sulfur-containing compound.

3. H2S → SO2: In the final step, hydrogen sulfide (H2S) is oxidized to produce sulfur dioxide (SO2). The reaction might involve the direct oxidation of H2S to SO2 by an oxidizing agent or through a multi-step process.

Overall, the pathway describes the transformation of hydrogen bromide (HBr) into sulfur dioxide (SO2) through a series of intermediate reactions involving hydrogen gas (H2) and hydrogen sulfide (H2S). Keep in mind that the reaction conditions and specific reagents involved are not provided, so the actual reaction mechanism might differ based on the specific circumstances.